Account Provisioning

Account Provisioning allows users to sign up for new email accounts directly from within Thunderbird.

mail.provider.enabled

Default: true

Default Action: If the user does not have an account set up, they will be prompted to sign up for a new account. They may choose to set up an existing account that they hold instead of obtaining a new one.

Filelink

Filelink is a feature that allows users to upload big files to various servers and send a link to the attachment in the email, rather than the attachment itself. This has benefits for sending the email, especially when sending to multiple users.

It is possible for other providers/accounts types to be set up; we are working on documenting that at the moment.

mail.cloud_files.enabled

Default: true

Default Action: Prompts the user to see if they wish to send a link for big file attachments, rather than the link itself

Notes: Obsolete after Thunderbird 13, use mailnews.display.html_sanitizer.drop_media and mailnews.display.html_sanitizer.drop_non_css_presentation instead. The preference will be automatically migrated to the new preferences if necessary.

Version Upgrades

Default Action: When upgrading to a build from before Thunderbird 10 to after, the user will be prompted about add-ons installed by Third Parties.

Notes: This preference is a bit-wise OR of values that control the locations for which add-ons are prompted about as third-parties. Organizations typically want to set this to 11 if they are installing thier own add-ons. The bit values are as follows:

1: Installed in the profile

2: Installed for all of this user's profile

4: Installed and owned by the Application

8: Installed for all users of the computer

Migration Assistant

mailnews.ui.show.migration.on.upgrade

Default: true

Default Action: Shows the migration assistant when we're upgrading a profile from 3.0 or earlier.

Offline Download / Synchronisation

mail.server.default.offline_download

Default: true

Default Action: Used to determine if newly created folders are set to take part in offline download or not.

Notes:

This is the default value for all servers/accounts, i.e. when the mail.server.server<n>.offline_download is not set.

mail.server.server<n>.offline_download

Default: true

Default Action: Used to determine if newly created folders are set to take part in offline download or not.

Notes:

This value is typically not present unless it has been specifically overridden.

Overrides mail.server.default.offline_download for server<n>

Both preferences now also have the behaviour that if offline_download is true for an account/server, then on upgrade from Thunderbird 2, all existing IMAP folders will be updated to take part in offline download.